1f89bd95cSHenrik Rydberg /* 2f89bd95cSHenrik Rydberg * Apple USB BCM5974 (Macbook Air and Penryn Macbook Pro) multitouch driver 3f89bd95cSHenrik Rydberg * 4f89bd95cSHenrik Rydberg * Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se) 5f89bd95cSHenrik Rydberg * 6f89bd95cSHenrik Rydberg * The USB initialization and package decoding was made by 7f89bd95cSHenrik Rydberg * Scott Shawcroft as part of the touchd user-space driver project: 8f89bd95cSHenrik Rydberg * Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com) 9f89bd95cSHenrik Rydberg * 10f89bd95cSHenrik Rydberg * The BCM5974 driver is based on the appletouch driver: 11f89bd95cSHenrik Rydberg * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) 12f89bd95cSHenrik Rydberg * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) 13f89bd95cSHenrik Rydberg * Copyright (C) 2005 Stelian Pop (stelian@popies.net) 14f89bd95cSHenrik Rydberg * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) 15f89bd95cSHenrik Rydberg * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) 16f89bd95cSHenrik Rydberg * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) 17f89bd95cSHenrik Rydberg * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) 18f89bd95cSHenrik Rydberg * 19f89bd95cSHenrik Rydberg * This program is free software; you can redistribute it and/or modify 20f89bd95cSHenrik Rydberg * it under the terms of the GNU General Public License as published by 21f89bd95cSHenrik Rydberg * the Free Software Foundation; either version 2 of the License, or 22f89bd95cSHenrik Rydberg * (at your option) any later version. 23f89bd95cSHenrik Rydberg * 24f89bd95cSHenrik Rydberg * This program is distributed in the hope that it will be useful, 25f89bd95cSHenrik Rydberg * but WITHOUT ANY WARRANTY; without even the implied warranty of 26f89bd95cSHenrik Rydberg * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27f89bd95cSHenrik Rydberg * GNU General Public License for more details. 28f89bd95cSHenrik Rydberg * 29f89bd95cSHenrik Rydberg * You should have received a copy of the GNU General Public License 30f89bd95cSHenrik Rydberg * along with this program; if not, write to the Free Software 31f89bd95cSHenrik Rydberg * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 32f89bd95cSHenrik Rydberg * 33f89bd95cSHenrik Rydberg */ 34f89bd95cSHenrik Rydberg 35f89bd95cSHenrik Rydberg #include <linux/kernel.h> 36f89bd95cSHenrik Rydberg #include <linux/errno.h> 37f89bd95cSHenrik Rydberg #include <linux/init.h> 38f89bd95cSHenrik Rydberg #include <linux/slab.h> 39f89bd95cSHenrik Rydberg #include <linux/module.h> 40f89bd95cSHenrik Rydberg #include <linux/usb/input.h> 41f89bd95cSHenrik Rydberg #include <linux/hid.h> 42f89bd95cSHenrik Rydberg #include <linux/mutex.h> 43f89bd95cSHenrik Rydberg 44f89bd95cSHenrik Rydberg #define USB_VENDOR_ID_APPLE 0x05ac 45f89bd95cSHenrik Rydberg 46f89bd95cSHenrik Rydberg /* MacbookAir, aka wellspring */ 47f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223 48f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224 49f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225 50f89bd95cSHenrik Rydberg /* MacbookProPenryn, aka wellspring2 */ 51f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230 52f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231 53f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232 54158e9287SHenrik Rydberg /* Macbook5,1 (unibody), aka wellspring3 */ 55158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236 56158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237 57158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238 586021afcfSEdgar (gimli) Hucek /* MacbookAir3,2 (unibody), aka wellspring5 */ 596021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI 0x023f 606021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_ISO 0x0240 616021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_JIS 0x0241 626021afcfSEdgar (gimli) Hucek /* MacbookAir3,1 (unibody), aka wellspring4 */ 636021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI 0x0242 646021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO 0x0243 656021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS 0x0244 6647340bd9SAndy Botting /* Macbook8 (unibody, March 2011) */ 6747340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI 0x0245 6847340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO 0x0246 6947340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS 0x0247 701c601beaSPieter-Augustijn Van Malleghem /* MacbookAir4,1 (unibody, July 2011) */ 711c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249 721c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a 731c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b 74db0b34b0SJoshua V. Dillon /* MacbookAir4,2 (unibody, July 2011) */ 75db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI 0x024c 76db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO 0x024d 77db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS 0x024e 78c331eb58SAndrew Drake /* Macbook8,2 (unibody) */ 79c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252 80c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253 81c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254 82f89bd95cSHenrik Rydberg 83f89bd95cSHenrik Rydberg #define BCM5974_DEVICE(prod) { \ 84f89bd95cSHenrik Rydberg .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ 85f89bd95cSHenrik Rydberg USB_DEVICE_ID_MATCH_INT_CLASS | \ 86f89bd95cSHenrik Rydberg USB_DEVICE_ID_MATCH_INT_PROTOCOL), \ 87f89bd95cSHenrik Rydberg .idVendor = USB_VENDOR_ID_APPLE, \ 88f89bd95cSHenrik Rydberg .idProduct = (prod), \ 89f89bd95cSHenrik Rydberg .bInterfaceClass = USB_INTERFACE_CLASS_HID, \ 90f89bd95cSHenrik Rydberg .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \ 91f89bd95cSHenrik Rydberg } 92f89bd95cSHenrik Rydberg 93f89bd95cSHenrik Rydberg /* table of devices that work with this driver */ 94f89bd95cSHenrik Rydberg static const struct usb_device_id bcm5974_table[] = { 95f89bd95cSHenrik Rydberg /* MacbookAir1.1 */ 96f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), 97f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO), 98f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS), 99f89bd95cSHenrik Rydberg /* MacbookProPenryn */ 100f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI), 101f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO), 102f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS), 103158e9287SHenrik Rydberg /* Macbook5,1 */ 104158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI), 105158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO), 106158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS), 1076021afcfSEdgar (gimli) Hucek /* MacbookAir3,2 */ 1086021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI), 1096021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO), 1106021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS), 1116021afcfSEdgar (gimli) Hucek /* MacbookAir3,1 */ 1126021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI), 1136021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO), 1146021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS), 11547340bd9SAndy Botting /* MacbookPro8 */ 11647340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI), 11747340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO), 11847340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS), 1191c601beaSPieter-Augustijn Van Malleghem /* MacbookAir4,1 */ 1201c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI), 1211c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO), 1221c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS), 123db0b34b0SJoshua V. Dillon /* MacbookAir4,2 */ 124db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI), 125db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO), 126db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS), 127c331eb58SAndrew Drake /* MacbookPro8,2 */ 128c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI), 129c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO), 130c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS), 131f89bd95cSHenrik Rydberg /* Terminating entry */ 132f89bd95cSHenrik Rydberg {} 133f89bd95cSHenrik Rydberg }; 134f89bd95cSHenrik Rydberg MODULE_DEVICE_TABLE(usb, bcm5974_table); 135f89bd95cSHenrik Rydberg 136f89bd95cSHenrik Rydberg MODULE_AUTHOR("Henrik Rydberg"); 137f89bd95cSHenrik Rydberg MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver"); 138f89bd95cSHenrik Rydberg MODULE_LICENSE("GPL"); 139f89bd95cSHenrik Rydberg 140f89bd95cSHenrik Rydberg #define dprintk(level, format, a...)\ 141f89bd95cSHenrik Rydberg { if (debug >= level) printk(KERN_DEBUG format, ##a); } 142f89bd95cSHenrik Rydberg 143f89bd95cSHenrik Rydberg static int debug = 1; 144f89bd95cSHenrik Rydberg module_param(debug, int, 0644); 145f89bd95cSHenrik Rydberg MODULE_PARM_DESC(debug, "Activate debugging output"); 146f89bd95cSHenrik Rydberg 147f89bd95cSHenrik Rydberg /* button data structure */ 148f89bd95cSHenrik Rydberg struct bt_data { 149f89bd95cSHenrik Rydberg u8 unknown1; /* constant */ 150f89bd95cSHenrik Rydberg u8 button; /* left button */ 151f89bd95cSHenrik Rydberg u8 rel_x; /* relative x coordinate */ 152f89bd95cSHenrik Rydberg u8 rel_y; /* relative y coordinate */ 153f89bd95cSHenrik Rydberg }; 154f89bd95cSHenrik Rydberg 1559894cf0fSHenrik Rydberg /* trackpad header types */ 1569894cf0fSHenrik Rydberg enum tp_type { 157158e9287SHenrik Rydberg TYPE1, /* plain trackpad */ 158158e9287SHenrik Rydberg TYPE2 /* button integrated in trackpad */ 159f89bd95cSHenrik Rydberg }; 160f89bd95cSHenrik Rydberg 1619894cf0fSHenrik Rydberg /* trackpad finger data offsets, le16-aligned */ 1629894cf0fSHenrik Rydberg #define FINGER_TYPE1 (13 * sizeof(__le16)) 163158e9287SHenrik Rydberg #define FINGER_TYPE2 (15 * sizeof(__le16)) 164158e9287SHenrik Rydberg 165158e9287SHenrik Rydberg /* trackpad button data offsets */ 166158e9287SHenrik Rydberg #define BUTTON_TYPE2 15 167158e9287SHenrik Rydberg 168158e9287SHenrik Rydberg /* list of device capability bits */ 169158e9287SHenrik Rydberg #define HAS_INTEGRATED_BUTTON 1 1709894cf0fSHenrik Rydberg 1719894cf0fSHenrik Rydberg /* trackpad finger structure, le16-aligned */ 172f89bd95cSHenrik Rydberg struct tp_finger { 17375e21e3fSHenrik Rydberg __le16 origin; /* zero when switching track finger */ 174f89bd95cSHenrik Rydberg __le16 abs_x; /* absolute x coodinate */ 175f89bd95cSHenrik Rydberg __le16 abs_y; /* absolute y coodinate */ 176f89bd95cSHenrik Rydberg __le16 rel_x; /* relative x coodinate */ 177f89bd95cSHenrik Rydberg __le16 rel_y; /* relative y coodinate */ 178f89bd95cSHenrik Rydberg __le16 size_major; /* finger size, major axis? */ 179f89bd95cSHenrik Rydberg __le16 size_minor; /* finger size, minor axis? */ 180f89bd95cSHenrik Rydberg __le16 orientation; /* 16384 when point, else 15 bit angle */ 181f89bd95cSHenrik Rydberg __le16 force_major; /* trackpad force, major axis? */ 182f89bd95cSHenrik Rydberg __le16 force_minor; /* trackpad force, minor axis? */ 183f89bd95cSHenrik Rydberg __le16 unused[3]; /* zeros */ 184f89bd95cSHenrik Rydberg __le16 multi; /* one finger: varies, more fingers: constant */ 1859894cf0fSHenrik Rydberg } __attribute__((packed,aligned(2))); 186f89bd95cSHenrik Rydberg 1879894cf0fSHenrik Rydberg /* trackpad finger data size, empirically at least ten fingers */ 1889894cf0fSHenrik Rydberg #define SIZEOF_FINGER sizeof(struct tp_finger) 1899894cf0fSHenrik Rydberg #define SIZEOF_ALL_FINGERS (16 * SIZEOF_FINGER) 1906f2701b7SHenrik Rydberg #define MAX_FINGER_ORIENTATION 16384 191f89bd95cSHenrik Rydberg 192f89bd95cSHenrik Rydberg /* device-specific parameters */ 193f89bd95cSHenrik Rydberg struct bcm5974_param { 194f89bd95cSHenrik Rydberg int dim; /* logical dimension */ 195f89bd95cSHenrik Rydberg int fuzz; /* logical noise value */ 196f89bd95cSHenrik Rydberg int devmin; /* device minimum reading */ 197f89bd95cSHenrik Rydberg int devmax; /* device maximum reading */ 198f89bd95cSHenrik Rydberg }; 199f89bd95cSHenrik Rydberg 200f89bd95cSHenrik Rydberg /* device-specific configuration */ 201f89bd95cSHenrik Rydberg struct bcm5974_config { 202f89bd95cSHenrik Rydberg int ansi, iso, jis; /* the product id of this device */ 203158e9287SHenrik Rydberg int caps; /* device capability bitmask */ 204f89bd95cSHenrik Rydberg int bt_ep; /* the endpoint of the button interface */ 205f89bd95cSHenrik Rydberg int bt_datalen; /* data length of the button interface */ 206f89bd95cSHenrik Rydberg int tp_ep; /* the endpoint of the trackpad interface */ 2079894cf0fSHenrik Rydberg enum tp_type tp_type; /* type of trackpad interface */ 2089894cf0fSHenrik Rydberg int tp_offset; /* offset to trackpad finger data */ 209f89bd95cSHenrik Rydberg int tp_datalen; /* data length of the trackpad interface */ 210f89bd95cSHenrik Rydberg struct bcm5974_param p; /* finger pressure limits */ 211f89bd95cSHenrik Rydberg struct bcm5974_param w; /* finger width limits */ 212f89bd95cSHenrik Rydberg struct bcm5974_param x; /* horizontal limits */ 213f89bd95cSHenrik Rydberg struct bcm5974_param y; /* vertical limits */ 214f89bd95cSHenrik Rydberg }; 215f89bd95cSHenrik Rydberg 216f89bd95cSHenrik Rydberg /* logical device structure */ 217f89bd95cSHenrik Rydberg struct bcm5974 { 218f89bd95cSHenrik Rydberg char phys[64]; 219f89bd95cSHenrik Rydberg struct usb_device *udev; /* usb device */ 22088da765fSDmitry Torokhov struct usb_interface *intf; /* our interface */ 221f89bd95cSHenrik Rydberg struct input_dev *input; /* input dev */ 222f89bd95cSHenrik Rydberg struct bcm5974_config cfg; /* device configuration */ 223f89bd95cSHenrik Rydberg struct mutex pm_mutex; /* serialize access to open/suspend */ 224f89bd95cSHenrik Rydberg int opened; /* 1: opened, 0: closed */ 225f89bd95cSHenrik Rydberg struct urb *bt_urb; /* button usb request block */ 226f89bd95cSHenrik Rydberg struct bt_data *bt_data; /* button transferred data */ 227f89bd95cSHenrik Rydberg struct urb *tp_urb; /* trackpad usb request block */ 2289894cf0fSHenrik Rydberg u8 *tp_data; /* trackpad transferred data */ 22975e21e3fSHenrik Rydberg int fingers; /* number of fingers on trackpad */ 230f89bd95cSHenrik Rydberg }; 231f89bd95cSHenrik Rydberg 232f89bd95cSHenrik Rydberg /* logical dimensions */ 233f89bd95cSHenrik Rydberg #define DIM_PRESSURE 256 /* maximum finger pressure */ 234f89bd95cSHenrik Rydberg #define DIM_WIDTH 16 /* maximum finger width */ 235f89bd95cSHenrik Rydberg #define DIM_X 1280 /* maximum trackpad x value */ 236f89bd95cSHenrik Rydberg #define DIM_Y 800 /* maximum trackpad y value */ 237f89bd95cSHenrik Rydberg 238f89bd95cSHenrik Rydberg /* logical signal quality */ 239f89bd95cSHenrik Rydberg #define SN_PRESSURE 45 /* pressure signal-to-noise ratio */ 240f89bd95cSHenrik Rydberg #define SN_WIDTH 100 /* width signal-to-noise ratio */ 241f89bd95cSHenrik Rydberg #define SN_COORD 250 /* coordinate signal-to-noise ratio */ 242f89bd95cSHenrik Rydberg 24375e21e3fSHenrik Rydberg /* pressure thresholds */ 24475e21e3fSHenrik Rydberg #define PRESSURE_LOW (2 * DIM_PRESSURE / SN_PRESSURE) 24575e21e3fSHenrik Rydberg #define PRESSURE_HIGH (3 * PRESSURE_LOW) 24675e21e3fSHenrik Rydberg 247f89bd95cSHenrik Rydberg /* device constants */ 248f89bd95cSHenrik Rydberg static const struct bcm5974_config bcm5974_config_table[] = { 249f89bd95cSHenrik Rydberg { 250f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, 251f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_ISO, 252f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_JIS, 253158e9287SHenrik Rydberg 0, 254f89bd95cSHenrik Rydberg 0x84, sizeof(struct bt_data), 2559894cf0fSHenrik Rydberg 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, 256f89bd95cSHenrik Rydberg { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 }, 257f89bd95cSHenrik Rydberg { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 258f89bd95cSHenrik Rydberg { DIM_X, DIM_X / SN_COORD, -4824, 5342 }, 259f89bd95cSHenrik Rydberg { DIM_Y, DIM_Y / SN_COORD, -172, 5820 } 260f89bd95cSHenrik Rydberg }, 261f89bd95cSHenrik Rydberg { 262f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, 263f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, 264f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, 265158e9287SHenrik Rydberg 0, 266f89bd95cSHenrik Rydberg 0x84, sizeof(struct bt_data), 2679894cf0fSHenrik Rydberg 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, 268f89bd95cSHenrik Rydberg { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 }, 269f89bd95cSHenrik Rydberg { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 270f89bd95cSHenrik Rydberg { DIM_X, DIM_X / SN_COORD, -4824, 4824 }, 271f89bd95cSHenrik Rydberg { DIM_Y, DIM_Y / SN_COORD, -172, 4290 } 272f89bd95cSHenrik Rydberg }, 273158e9287SHenrik Rydberg { 274158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI, 275158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_ISO, 276158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_JIS, 277158e9287SHenrik Rydberg HAS_INTEGRATED_BUTTON, 278158e9287SHenrik Rydberg 0x84, sizeof(struct bt_data), 279158e9287SHenrik Rydberg 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 280158e9287SHenrik Rydberg { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 281158e9287SHenrik Rydberg { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 282158e9287SHenrik Rydberg { DIM_X, DIM_X / SN_COORD, -4460, 5166 }, 283158e9287SHenrik Rydberg { DIM_Y, DIM_Y / SN_COORD, -75, 6700 } 284158e9287SHenrik Rydberg }, 2856021afcfSEdgar (gimli) Hucek { 2866021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI, 2876021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_ISO, 2886021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_JIS, 2896021afcfSEdgar (gimli) Hucek HAS_INTEGRATED_BUTTON, 2906021afcfSEdgar (gimli) Hucek 0x84, sizeof(struct bt_data), 2916021afcfSEdgar (gimli) Hucek 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 2926021afcfSEdgar (gimli) Hucek { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 2936021afcfSEdgar (gimli) Hucek { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 2946021afcfSEdgar (gimli) Hucek { DIM_X, DIM_X / SN_COORD, -4620, 5140 }, 2956021afcfSEdgar (gimli) Hucek { DIM_Y, DIM_Y / SN_COORD, -150, 6600 } 2966021afcfSEdgar (gimli) Hucek }, 2976021afcfSEdgar (gimli) Hucek { 2986021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI, 2996021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO, 3006021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS, 3016021afcfSEdgar (gimli) Hucek HAS_INTEGRATED_BUTTON, 3026021afcfSEdgar (gimli) Hucek 0x84, sizeof(struct bt_data), 3036021afcfSEdgar (gimli) Hucek 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3046021afcfSEdgar (gimli) Hucek { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 3056021afcfSEdgar (gimli) Hucek { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 3066021afcfSEdgar (gimli) Hucek { DIM_X, DIM_X / SN_COORD, -4616, 5112 }, 3076021afcfSEdgar (gimli) Hucek { DIM_Y, DIM_Y / SN_COORD, -142, 5234 } 3086021afcfSEdgar (gimli) Hucek }, 30947340bd9SAndy Botting { 31047340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI, 31147340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_ISO, 31247340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_JIS, 31347340bd9SAndy Botting HAS_INTEGRATED_BUTTON, 31447340bd9SAndy Botting 0x84, sizeof(struct bt_data), 31547340bd9SAndy Botting 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 31647340bd9SAndy Botting { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 31747340bd9SAndy Botting { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 31847340bd9SAndy Botting { DIM_X, DIM_X / SN_COORD, -4415, 5050 }, 31947340bd9SAndy Botting { DIM_Y, DIM_Y / SN_COORD, -55, 6680 } 32047340bd9SAndy Botting }, 321db0b34b0SJoshua V. Dillon { 322db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI, 323db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_ISO, 324db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_JIS, 325db0b34b0SJoshua V. Dillon HAS_INTEGRATED_BUTTON, 326db0b34b0SJoshua V. Dillon 0x84, sizeof(struct bt_data), 327db0b34b0SJoshua V. Dillon 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 328db0b34b0SJoshua V. Dillon { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 329db0b34b0SJoshua V. Dillon { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 330db0b34b0SJoshua V. Dillon { DIM_X, DIM_X / SN_COORD, -4620, 5140 }, 331db0b34b0SJoshua V. Dillon { DIM_Y, DIM_Y / SN_COORD, -150, 6600 } 332db0b34b0SJoshua V. Dillon }, 333c331eb58SAndrew Drake { 334c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI, 335c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO, 336c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS, 337c331eb58SAndrew Drake HAS_INTEGRATED_BUTTON, 338c331eb58SAndrew Drake 0x84, sizeof(struct bt_data), 339c331eb58SAndrew Drake 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 340c331eb58SAndrew Drake { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 341c331eb58SAndrew Drake { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 342c331eb58SAndrew Drake { DIM_X, DIM_X / SN_COORD, -4750, 5280 }, 343c331eb58SAndrew Drake { DIM_Y, DIM_Y / SN_COORD, -150, 6730 } 344c331eb58SAndrew Drake }, 3451c601beaSPieter-Augustijn Van Malleghem { 3461c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI, 3471c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO, 3481c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS, 3491c601beaSPieter-Augustijn Van Malleghem HAS_INTEGRATED_BUTTON, 3501c601beaSPieter-Augustijn Van Malleghem 0x84, sizeof(struct bt_data), 3511c601beaSPieter-Augustijn Van Malleghem 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3521c601beaSPieter-Augustijn Van Malleghem { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 }, 3531c601beaSPieter-Augustijn Van Malleghem { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 }, 3541c601beaSPieter-Augustijn Van Malleghem { DIM_X, DIM_X / SN_COORD, -4620, 5140 }, 3551c601beaSPieter-Augustijn Van Malleghem { DIM_Y, DIM_Y / SN_COORD, -150, 6600 } 3561c601beaSPieter-Augustijn Van Malleghem }, 357f89bd95cSHenrik Rydberg {} 358f89bd95cSHenrik Rydberg }; 359f89bd95cSHenrik Rydberg 360f89bd95cSHenrik Rydberg /* return the device-specific configuration by device */ 361f89bd95cSHenrik Rydberg static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev) 362f89bd95cSHenrik Rydberg { 363f89bd95cSHenrik Rydberg u16 id = le16_to_cpu(udev->descriptor.idProduct); 364f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg; 365f89bd95cSHenrik Rydberg 366f89bd95cSHenrik Rydberg for (cfg = bcm5974_config_table; cfg->ansi; ++cfg) 367f89bd95cSHenrik Rydberg if (cfg->ansi == id || cfg->iso == id || cfg->jis == id) 368f89bd95cSHenrik Rydberg return cfg; 369f89bd95cSHenrik Rydberg 370f89bd95cSHenrik Rydberg return bcm5974_config_table; 371f89bd95cSHenrik Rydberg } 372f89bd95cSHenrik Rydberg 373f89bd95cSHenrik Rydberg /* convert 16-bit little endian to signed integer */ 374f89bd95cSHenrik Rydberg static inline int raw2int(__le16 x) 375f89bd95cSHenrik Rydberg { 376f89bd95cSHenrik Rydberg return (signed short)le16_to_cpu(x); 377f89bd95cSHenrik Rydberg } 378f89bd95cSHenrik Rydberg 379f89bd95cSHenrik Rydberg /* scale device data to logical dimensions (asserts devmin < devmax) */ 380f89bd95cSHenrik Rydberg static inline int int2scale(const struct bcm5974_param *p, int x) 381f89bd95cSHenrik Rydberg { 382f89bd95cSHenrik Rydberg return x * p->dim / (p->devmax - p->devmin); 383f89bd95cSHenrik Rydberg } 384f89bd95cSHenrik Rydberg 385f89bd95cSHenrik Rydberg /* all logical value ranges are [0,dim). */ 386f89bd95cSHenrik Rydberg static inline int int2bound(const struct bcm5974_param *p, int x) 387f89bd95cSHenrik Rydberg { 388f89bd95cSHenrik Rydberg int s = int2scale(p, x); 389f89bd95cSHenrik Rydberg 390f89bd95cSHenrik Rydberg return clamp_val(s, 0, p->dim - 1); 391f89bd95cSHenrik Rydberg } 392f89bd95cSHenrik Rydberg 393f89bd95cSHenrik Rydberg /* setup which logical events to report */ 394f89bd95cSHenrik Rydberg static void setup_events_to_report(struct input_dev *input_dev, 395f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg) 396f89bd95cSHenrik Rydberg { 397f89bd95cSHenrik Rydberg __set_bit(EV_ABS, input_dev->evbit); 398f89bd95cSHenrik Rydberg 399f89bd95cSHenrik Rydberg input_set_abs_params(input_dev, ABS_PRESSURE, 400f89bd95cSHenrik Rydberg 0, cfg->p.dim, cfg->p.fuzz, 0); 401f89bd95cSHenrik Rydberg input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 402f89bd95cSHenrik Rydberg 0, cfg->w.dim, cfg->w.fuzz, 0); 403f89bd95cSHenrik Rydberg input_set_abs_params(input_dev, ABS_X, 404f89bd95cSHenrik Rydberg 0, cfg->x.dim, cfg->x.fuzz, 0); 405f89bd95cSHenrik Rydberg input_set_abs_params(input_dev, ABS_Y, 406f89bd95cSHenrik Rydberg 0, cfg->y.dim, cfg->y.fuzz, 0); 407f89bd95cSHenrik Rydberg 4086f2701b7SHenrik Rydberg /* finger touch area */ 4096f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 4106f2701b7SHenrik Rydberg cfg->w.devmin, cfg->w.devmax, 0, 0); 4116f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 4126f2701b7SHenrik Rydberg cfg->w.devmin, cfg->w.devmax, 0, 0); 4136f2701b7SHenrik Rydberg /* finger approach area */ 4146f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 4156f2701b7SHenrik Rydberg cfg->w.devmin, cfg->w.devmax, 0, 0); 4166f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 4176f2701b7SHenrik Rydberg cfg->w.devmin, cfg->w.devmax, 0, 0); 4186f2701b7SHenrik Rydberg /* finger orientation */ 4196f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 4206f2701b7SHenrik Rydberg -MAX_FINGER_ORIENTATION, 4216f2701b7SHenrik Rydberg MAX_FINGER_ORIENTATION, 0, 0); 4226f2701b7SHenrik Rydberg /* finger position */ 4236f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_POSITION_X, 4246f2701b7SHenrik Rydberg cfg->x.devmin, cfg->x.devmax, 0, 0); 4256f2701b7SHenrik Rydberg input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 4266f2701b7SHenrik Rydberg cfg->y.devmin, cfg->y.devmax, 0, 0); 4276f2701b7SHenrik Rydberg 428f89bd95cSHenrik Rydberg __set_bit(EV_KEY, input_dev->evbit); 429a6821f34SHenrik Rydberg __set_bit(BTN_TOUCH, input_dev->keybit); 430f89bd95cSHenrik Rydberg __set_bit(BTN_TOOL_FINGER, input_dev->keybit); 431f89bd95cSHenrik Rydberg __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); 432f89bd95cSHenrik Rydberg __set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit); 4336916d97fSHenrik Rydberg __set_bit(BTN_TOOL_QUADTAP, input_dev->keybit); 434f89bd95cSHenrik Rydberg __set_bit(BTN_LEFT, input_dev->keybit); 435c13aea03SHenrik Rydberg 436c13aea03SHenrik Rydberg input_set_events_per_packet(input_dev, 60); 437f89bd95cSHenrik Rydberg } 438f89bd95cSHenrik Rydberg 439f89bd95cSHenrik Rydberg /* report button data as logical button state */ 440f89bd95cSHenrik Rydberg static int report_bt_state(struct bcm5974 *dev, int size) 441f89bd95cSHenrik Rydberg { 442f89bd95cSHenrik Rydberg if (size != sizeof(struct bt_data)) 443f89bd95cSHenrik Rydberg return -EIO; 444f89bd95cSHenrik Rydberg 44553402193SHenrik Rydberg dprintk(7, 44653402193SHenrik Rydberg "bcm5974: button data: %x %x %x %x\n", 44753402193SHenrik Rydberg dev->bt_data->unknown1, dev->bt_data->button, 44853402193SHenrik Rydberg dev->bt_data->rel_x, dev->bt_data->rel_y); 44953402193SHenrik Rydberg 450f89bd95cSHenrik Rydberg input_report_key(dev->input, BTN_LEFT, dev->bt_data->button); 451f89bd95cSHenrik Rydberg input_sync(dev->input); 452f89bd95cSHenrik Rydberg 453f89bd95cSHenrik Rydberg return 0; 454f89bd95cSHenrik Rydberg } 455f89bd95cSHenrik Rydberg 4566f2701b7SHenrik Rydberg static void report_finger_data(struct input_dev *input, 4576f2701b7SHenrik Rydberg const struct bcm5974_config *cfg, 4586f2701b7SHenrik Rydberg const struct tp_finger *f) 4596f2701b7SHenrik Rydberg { 46057157becSHenrik Rydberg input_report_abs(input, ABS_MT_TOUCH_MAJOR, 46157157becSHenrik Rydberg raw2int(f->force_major) << 1); 46257157becSHenrik Rydberg input_report_abs(input, ABS_MT_TOUCH_MINOR, 46357157becSHenrik Rydberg raw2int(f->force_minor) << 1); 46457157becSHenrik Rydberg input_report_abs(input, ABS_MT_WIDTH_MAJOR, 46557157becSHenrik Rydberg raw2int(f->size_major) << 1); 46657157becSHenrik Rydberg input_report_abs(input, ABS_MT_WIDTH_MINOR, 46757157becSHenrik Rydberg raw2int(f->size_minor) << 1); 4686f2701b7SHenrik Rydberg input_report_abs(input, ABS_MT_ORIENTATION, 4696f2701b7SHenrik Rydberg MAX_FINGER_ORIENTATION - raw2int(f->orientation)); 4706f2701b7SHenrik Rydberg input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x)); 4716f2701b7SHenrik Rydberg input_report_abs(input, ABS_MT_POSITION_Y, 4726f2701b7SHenrik Rydberg cfg->y.devmin + cfg->y.devmax - raw2int(f->abs_y)); 4736f2701b7SHenrik Rydberg input_mt_sync(input); 4746f2701b7SHenrik Rydberg } 4756f2701b7SHenrik Rydberg 476f89bd95cSHenrik Rydberg /* report trackpad data as logical trackpad state */ 477f89bd95cSHenrik Rydberg static int report_tp_state(struct bcm5974 *dev, int size) 478f89bd95cSHenrik Rydberg { 479f89bd95cSHenrik Rydberg const struct bcm5974_config *c = &dev->cfg; 4809894cf0fSHenrik Rydberg const struct tp_finger *f; 481f89bd95cSHenrik Rydberg struct input_dev *input = dev->input; 4826f2701b7SHenrik Rydberg int raw_p, raw_w, raw_x, raw_y, raw_n, i; 4839de48cc3SHenrik Rydberg int ptest, origin, ibt = 0, nmin = 0, nmax = 0; 48475e21e3fSHenrik Rydberg int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0; 485f89bd95cSHenrik Rydberg 4869894cf0fSHenrik Rydberg if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0) 487f89bd95cSHenrik Rydberg return -EIO; 488f89bd95cSHenrik Rydberg 4899894cf0fSHenrik Rydberg /* finger data, le16-aligned */ 4909894cf0fSHenrik Rydberg f = (const struct tp_finger *)(dev->tp_data + c->tp_offset); 4919894cf0fSHenrik Rydberg raw_n = (size - c->tp_offset) / SIZEOF_FINGER; 4929894cf0fSHenrik Rydberg 49375e21e3fSHenrik Rydberg /* always track the first finger; when detached, start over */ 4949894cf0fSHenrik Rydberg if (raw_n) { 4956f2701b7SHenrik Rydberg 4966f2701b7SHenrik Rydberg /* report raw trackpad data */ 4976f2701b7SHenrik Rydberg for (i = 0; i < raw_n; i++) 4986f2701b7SHenrik Rydberg report_finger_data(input, c, &f[i]); 4996f2701b7SHenrik Rydberg 50075e21e3fSHenrik Rydberg raw_p = raw2int(f->force_major); 50175e21e3fSHenrik Rydberg raw_w = raw2int(f->size_major); 50275e21e3fSHenrik Rydberg raw_x = raw2int(f->abs_x); 50375e21e3fSHenrik Rydberg raw_y = raw2int(f->abs_y); 504f89bd95cSHenrik Rydberg 505f89bd95cSHenrik Rydberg dprintk(9, 50653402193SHenrik Rydberg "bcm5974: " 50753402193SHenrik Rydberg "raw: p: %+05d w: %+05d x: %+05d y: %+05d n: %d\n", 50853402193SHenrik Rydberg raw_p, raw_w, raw_x, raw_y, raw_n); 509f89bd95cSHenrik Rydberg 51075e21e3fSHenrik Rydberg ptest = int2bound(&c->p, raw_p); 51175e21e3fSHenrik Rydberg origin = raw2int(f->origin); 512158e9287SHenrik Rydberg 51375e21e3fSHenrik Rydberg /* while tracking finger still valid, count all fingers */ 51475e21e3fSHenrik Rydberg if (ptest > PRESSURE_LOW && origin) { 51575e21e3fSHenrik Rydberg abs_p = ptest; 51675e21e3fSHenrik Rydberg abs_w = int2bound(&c->w, raw_w); 51775e21e3fSHenrik Rydberg abs_x = int2bound(&c->x, raw_x - c->x.devmin); 51875e21e3fSHenrik Rydberg abs_y = int2bound(&c->y, c->y.devmax - raw_y); 5199894cf0fSHenrik Rydberg while (raw_n--) { 5209de48cc3SHenrik Rydberg ptest = int2bound(&c->p, 5219de48cc3SHenrik Rydberg raw2int(f->force_major)); 52275e21e3fSHenrik Rydberg if (ptest > PRESSURE_LOW) 52375e21e3fSHenrik Rydberg nmax++; 52475e21e3fSHenrik Rydberg if (ptest > PRESSURE_HIGH) 52575e21e3fSHenrik Rydberg nmin++; 5269894cf0fSHenrik Rydberg f++; 52775e21e3fSHenrik Rydberg } 52875e21e3fSHenrik Rydberg } 5299de48cc3SHenrik Rydberg } 530f89bd95cSHenrik Rydberg 53150635115SHenrik Rydberg /* set the integrated button if applicable */ 53250635115SHenrik Rydberg if (c->tp_type == TYPE2) 53350635115SHenrik Rydberg ibt = raw2int(dev->tp_data[BUTTON_TYPE2]); 53450635115SHenrik Rydberg 53575e21e3fSHenrik Rydberg if (dev->fingers < nmin) 53675e21e3fSHenrik Rydberg dev->fingers = nmin; 53775e21e3fSHenrik Rydberg if (dev->fingers > nmax) 53875e21e3fSHenrik Rydberg dev->fingers = nmax; 53975e21e3fSHenrik Rydberg 540a6821f34SHenrik Rydberg input_report_key(input, BTN_TOUCH, dev->fingers > 0); 54175e21e3fSHenrik Rydberg input_report_key(input, BTN_TOOL_FINGER, dev->fingers == 1); 54275e21e3fSHenrik Rydberg input_report_key(input, BTN_TOOL_DOUBLETAP, dev->fingers == 2); 5436916d97fSHenrik Rydberg input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers == 3); 5446916d97fSHenrik Rydberg input_report_key(input, BTN_TOOL_QUADTAP, dev->fingers > 3); 54575e21e3fSHenrik Rydberg 54675e21e3fSHenrik Rydberg input_report_abs(input, ABS_PRESSURE, abs_p); 54775e21e3fSHenrik Rydberg input_report_abs(input, ABS_TOOL_WIDTH, abs_w); 54875e21e3fSHenrik Rydberg 54975e21e3fSHenrik Rydberg if (abs_p) { 55075e21e3fSHenrik Rydberg input_report_abs(input, ABS_X, abs_x); 55175e21e3fSHenrik Rydberg input_report_abs(input, ABS_Y, abs_y); 55275e21e3fSHenrik Rydberg 55375e21e3fSHenrik Rydberg dprintk(8, 55475e21e3fSHenrik Rydberg "bcm5974: abs: p: %+05d w: %+05d x: %+05d y: %+05d " 55553402193SHenrik Rydberg "nmin: %d nmax: %d n: %d ibt: %d\n", abs_p, abs_w, 55653402193SHenrik Rydberg abs_x, abs_y, nmin, nmax, dev->fingers, ibt); 55775e21e3fSHenrik Rydberg 55875e21e3fSHenrik Rydberg } 559f89bd95cSHenrik Rydberg 560158e9287SHenrik Rydberg /* type 2 reports button events via ibt only */ 561158e9287SHenrik Rydberg if (c->tp_type == TYPE2) 562158e9287SHenrik Rydberg input_report_key(input, BTN_LEFT, ibt); 563158e9287SHenrik Rydberg 564f89bd95cSHenrik Rydberg input_sync(input); 565f89bd95cSHenrik Rydberg 566f89bd95cSHenrik Rydberg return 0; 567f89bd95cSHenrik Rydberg } 568f89bd95cSHenrik Rydberg 569f89bd95cSHenrik Rydberg /* Wellspring initialization constants */ 570f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1 571f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9 572f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300 573f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0 574f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01 575cd72ad3fSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08 576f89bd95cSHenrik Rydberg 577cd72ad3fSHenrik Rydberg static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on) 578f89bd95cSHenrik Rydberg { 579f89bd95cSHenrik Rydberg char *data = kmalloc(8, GFP_KERNEL); 580f89bd95cSHenrik Rydberg int retval = 0, size; 581f89bd95cSHenrik Rydberg 582f89bd95cSHenrik Rydberg if (!data) { 583f89bd95cSHenrik Rydberg err("bcm5974: out of memory"); 584f89bd95cSHenrik Rydberg retval = -ENOMEM; 585f89bd95cSHenrik Rydberg goto out; 586f89bd95cSHenrik Rydberg } 587f89bd95cSHenrik Rydberg 588f89bd95cSHenrik Rydberg /* read configuration */ 589f89bd95cSHenrik Rydberg size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), 590f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_READ_REQUEST_ID, 591f89bd95cSHenrik Rydberg USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 592f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_VALUE, 593f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); 594f89bd95cSHenrik Rydberg 595f89bd95cSHenrik Rydberg if (size != 8) { 596f89bd95cSHenrik Rydberg err("bcm5974: could not read from device"); 597f89bd95cSHenrik Rydberg retval = -EIO; 598f89bd95cSHenrik Rydberg goto out; 599f89bd95cSHenrik Rydberg } 600f89bd95cSHenrik Rydberg 601f89bd95cSHenrik Rydberg /* apply the mode switch */ 602cd72ad3fSHenrik Rydberg data[0] = on ? 603cd72ad3fSHenrik Rydberg BCM5974_WELLSPRING_MODE_VENDOR_VALUE : 604cd72ad3fSHenrik Rydberg BCM5974_WELLSPRING_MODE_NORMAL_VALUE; 605f89bd95cSHenrik Rydberg 606f89bd95cSHenrik Rydberg /* write configuration */ 607f89bd95cSHenrik Rydberg size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), 608f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID, 609f89bd95cSHenrik Rydberg USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 610f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_VALUE, 611f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); 612f89bd95cSHenrik Rydberg 613f89bd95cSHenrik Rydberg if (size != 8) { 614f89bd95cSHenrik Rydberg err("bcm5974: could not write to device"); 615f89bd95cSHenrik Rydberg retval = -EIO; 616f89bd95cSHenrik Rydberg goto out; 617f89bd95cSHenrik Rydberg } 618f89bd95cSHenrik Rydberg 619cd72ad3fSHenrik Rydberg dprintk(2, "bcm5974: switched to %s mode.\n", 620cd72ad3fSHenrik Rydberg on ? "wellspring" : "normal"); 621f89bd95cSHenrik Rydberg 622f89bd95cSHenrik Rydberg out: 623f89bd95cSHenrik Rydberg kfree(data); 624f89bd95cSHenrik Rydberg return retval; 625f89bd95cSHenrik Rydberg } 626f89bd95cSHenrik Rydberg 627f89bd95cSHenrik Rydberg static void bcm5974_irq_button(struct urb *urb) 628f89bd95cSHenrik Rydberg { 629f89bd95cSHenrik Rydberg struct bcm5974 *dev = urb->context; 630f89bd95cSHenrik Rydberg int error; 631f89bd95cSHenrik Rydberg 632f89bd95cSHenrik Rydberg switch (urb->status) { 633f89bd95cSHenrik Rydberg case 0: 634f89bd95cSHenrik Rydberg break; 635f89bd95cSHenrik Rydberg case -EOVERFLOW: 636f89bd95cSHenrik Rydberg case -ECONNRESET: 637f89bd95cSHenrik Rydberg case -ENOENT: 638f89bd95cSHenrik Rydberg case -ESHUTDOWN: 639f89bd95cSHenrik Rydberg dbg("bcm5974: button urb shutting down: %d", urb->status); 640f89bd95cSHenrik Rydberg return; 641f89bd95cSHenrik Rydberg default: 642f89bd95cSHenrik Rydberg dbg("bcm5974: button urb status: %d", urb->status); 643f89bd95cSHenrik Rydberg goto exit; 644f89bd95cSHenrik Rydberg } 645f89bd95cSHenrik Rydberg 646f89bd95cSHenrik Rydberg if (report_bt_state(dev, dev->bt_urb->actual_length)) 647f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: bad button package, length: %d\n", 648f89bd95cSHenrik Rydberg dev->bt_urb->actual_length); 649f89bd95cSHenrik Rydberg 650f89bd95cSHenrik Rydberg exit: 651f89bd95cSHenrik Rydberg error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC); 652f89bd95cSHenrik Rydberg if (error) 653f89bd95cSHenrik Rydberg err("bcm5974: button urb failed: %d", error); 654f89bd95cSHenrik Rydberg } 655f89bd95cSHenrik Rydberg 656f89bd95cSHenrik Rydberg static void bcm5974_irq_trackpad(struct urb *urb) 657f89bd95cSHenrik Rydberg { 658f89bd95cSHenrik Rydberg struct bcm5974 *dev = urb->context; 659f89bd95cSHenrik Rydberg int error; 660f89bd95cSHenrik Rydberg 661f89bd95cSHenrik Rydberg switch (urb->status) { 662f89bd95cSHenrik Rydberg case 0: 663f89bd95cSHenrik Rydberg break; 664f89bd95cSHenrik Rydberg case -EOVERFLOW: 665f89bd95cSHenrik Rydberg case -ECONNRESET: 666f89bd95cSHenrik Rydberg case -ENOENT: 667f89bd95cSHenrik Rydberg case -ESHUTDOWN: 668f89bd95cSHenrik Rydberg dbg("bcm5974: trackpad urb shutting down: %d", urb->status); 669f89bd95cSHenrik Rydberg return; 670f89bd95cSHenrik Rydberg default: 671f89bd95cSHenrik Rydberg dbg("bcm5974: trackpad urb status: %d", urb->status); 672f89bd95cSHenrik Rydberg goto exit; 673f89bd95cSHenrik Rydberg } 674f89bd95cSHenrik Rydberg 675f89bd95cSHenrik Rydberg /* control response ignored */ 676f89bd95cSHenrik Rydberg if (dev->tp_urb->actual_length == 2) 677f89bd95cSHenrik Rydberg goto exit; 678f89bd95cSHenrik Rydberg 679f89bd95cSHenrik Rydberg if (report_tp_state(dev, dev->tp_urb->actual_length)) 680f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: bad trackpad package, length: %d\n", 681f89bd95cSHenrik Rydberg dev->tp_urb->actual_length); 682f89bd95cSHenrik Rydberg 683f89bd95cSHenrik Rydberg exit: 684f89bd95cSHenrik Rydberg error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC); 685f89bd95cSHenrik Rydberg if (error) 686f89bd95cSHenrik Rydberg err("bcm5974: trackpad urb failed: %d", error); 687f89bd95cSHenrik Rydberg } 688f89bd95cSHenrik Rydberg 689f89bd95cSHenrik Rydberg /* 690f89bd95cSHenrik Rydberg * The Wellspring trackpad, like many recent Apple trackpads, share 691f89bd95cSHenrik Rydberg * the usb device with the keyboard. Since keyboards are usually 692f89bd95cSHenrik Rydberg * handled by the HID system, the device ends up being handled by two 693f89bd95cSHenrik Rydberg * modules. Setting up the device therefore becomes slightly 694f89bd95cSHenrik Rydberg * complicated. To enable multitouch features, a mode switch is 695f89bd95cSHenrik Rydberg * required, which is usually applied via the control interface of the 696f89bd95cSHenrik Rydberg * device. It can be argued where this switch should take place. In 697f89bd95cSHenrik Rydberg * some drivers, like appletouch, the switch is made during 698f89bd95cSHenrik Rydberg * probe. However, the hid module may also alter the state of the 699f89bd95cSHenrik Rydberg * device, resulting in trackpad malfunction under certain 700f89bd95cSHenrik Rydberg * circumstances. To get around this problem, there is at least one 701f89bd95cSHenrik Rydberg * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to 70225985edcSLucas De Marchi * receive a reset_resume request rather than the normal resume. 703f89bd95cSHenrik Rydberg * Since the implementation of reset_resume is equal to mode switch 704f89bd95cSHenrik Rydberg * plus start_traffic, it seems easier to always do the switch when 705f89bd95cSHenrik Rydberg * starting traffic on the device. 706f89bd95cSHenrik Rydberg */ 707f89bd95cSHenrik Rydberg static int bcm5974_start_traffic(struct bcm5974 *dev) 708f89bd95cSHenrik Rydberg { 7091719ec41SLuo Jinghua int error; 7101719ec41SLuo Jinghua 7111719ec41SLuo Jinghua error = bcm5974_wellspring_mode(dev, true); 7121719ec41SLuo Jinghua if (error) { 713f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: mode switch failed\n"); 7141719ec41SLuo Jinghua goto err_out; 715f89bd95cSHenrik Rydberg } 716f89bd95cSHenrik Rydberg 7171719ec41SLuo Jinghua error = usb_submit_urb(dev->bt_urb, GFP_KERNEL); 7181719ec41SLuo Jinghua if (error) 7191719ec41SLuo Jinghua goto err_reset_mode; 720f89bd95cSHenrik Rydberg 7211719ec41SLuo Jinghua error = usb_submit_urb(dev->tp_urb, GFP_KERNEL); 7221719ec41SLuo Jinghua if (error) 723f89bd95cSHenrik Rydberg goto err_kill_bt; 724f89bd95cSHenrik Rydberg 725f89bd95cSHenrik Rydberg return 0; 726f89bd95cSHenrik Rydberg 727f89bd95cSHenrik Rydberg err_kill_bt: 728f89bd95cSHenrik Rydberg usb_kill_urb(dev->bt_urb); 7291719ec41SLuo Jinghua err_reset_mode: 7301719ec41SLuo Jinghua bcm5974_wellspring_mode(dev, false); 7311719ec41SLuo Jinghua err_out: 7321719ec41SLuo Jinghua return error; 733f89bd95cSHenrik Rydberg } 734f89bd95cSHenrik Rydberg 735f89bd95cSHenrik Rydberg static void bcm5974_pause_traffic(struct bcm5974 *dev) 736f89bd95cSHenrik Rydberg { 737f89bd95cSHenrik Rydberg usb_kill_urb(dev->tp_urb); 738f89bd95cSHenrik Rydberg usb_kill_urb(dev->bt_urb); 739cd72ad3fSHenrik Rydberg bcm5974_wellspring_mode(dev, false); 740f89bd95cSHenrik Rydberg } 741f89bd95cSHenrik Rydberg 742f89bd95cSHenrik Rydberg /* 743f89bd95cSHenrik Rydberg * The code below implements open/close and manual suspend/resume. 744f89bd95cSHenrik Rydberg * All functions may be called in random order. 745f89bd95cSHenrik Rydberg * 746f89bd95cSHenrik Rydberg * Opening a suspended device fails with EACCES - permission denied. 747f89bd95cSHenrik Rydberg * 748f89bd95cSHenrik Rydberg * Failing a resume leaves the device resumed but closed. 749f89bd95cSHenrik Rydberg */ 750f89bd95cSHenrik Rydberg static int bcm5974_open(struct input_dev *input) 751f89bd95cSHenrik Rydberg { 752f89bd95cSHenrik Rydberg struct bcm5974 *dev = input_get_drvdata(input); 753f89bd95cSHenrik Rydberg int error; 754f89bd95cSHenrik Rydberg 75588da765fSDmitry Torokhov error = usb_autopm_get_interface(dev->intf); 75688da765fSDmitry Torokhov if (error) 75788da765fSDmitry Torokhov return error; 75888da765fSDmitry Torokhov 759f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 760f89bd95cSHenrik Rydberg 761f89bd95cSHenrik Rydberg error = bcm5974_start_traffic(dev); 762f89bd95cSHenrik Rydberg if (!error) 763f89bd95cSHenrik Rydberg dev->opened = 1; 764f89bd95cSHenrik Rydberg 765f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 766f89bd95cSHenrik Rydberg 76788da765fSDmitry Torokhov if (error) 76888da765fSDmitry Torokhov usb_autopm_put_interface(dev->intf); 76988da765fSDmitry Torokhov 770f89bd95cSHenrik Rydberg return error; 771f89bd95cSHenrik Rydberg } 772f89bd95cSHenrik Rydberg 773f89bd95cSHenrik Rydberg static void bcm5974_close(struct input_dev *input) 774f89bd95cSHenrik Rydberg { 775f89bd95cSHenrik Rydberg struct bcm5974 *dev = input_get_drvdata(input); 776f89bd95cSHenrik Rydberg 777f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 778f89bd95cSHenrik Rydberg 779f89bd95cSHenrik Rydberg bcm5974_pause_traffic(dev); 780f89bd95cSHenrik Rydberg dev->opened = 0; 781f89bd95cSHenrik Rydberg 782f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 78388da765fSDmitry Torokhov 78488da765fSDmitry Torokhov usb_autopm_put_interface(dev->intf); 785f89bd95cSHenrik Rydberg } 786f89bd95cSHenrik Rydberg 787f89bd95cSHenrik Rydberg static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message) 788f89bd95cSHenrik Rydberg { 789f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 790f89bd95cSHenrik Rydberg 791f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 792f89bd95cSHenrik Rydberg 793f89bd95cSHenrik Rydberg if (dev->opened) 794f89bd95cSHenrik Rydberg bcm5974_pause_traffic(dev); 795f89bd95cSHenrik Rydberg 796f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 797f89bd95cSHenrik Rydberg 798f89bd95cSHenrik Rydberg return 0; 799f89bd95cSHenrik Rydberg } 800f89bd95cSHenrik Rydberg 801f89bd95cSHenrik Rydberg static int bcm5974_resume(struct usb_interface *iface) 802f89bd95cSHenrik Rydberg { 803f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 804f89bd95cSHenrik Rydberg int error = 0; 805f89bd95cSHenrik Rydberg 806f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 807f89bd95cSHenrik Rydberg 808f89bd95cSHenrik Rydberg if (dev->opened) 809f89bd95cSHenrik Rydberg error = bcm5974_start_traffic(dev); 810f89bd95cSHenrik Rydberg 811f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 812f89bd95cSHenrik Rydberg 813f89bd95cSHenrik Rydberg return error; 814f89bd95cSHenrik Rydberg } 815f89bd95cSHenrik Rydberg 816f89bd95cSHenrik Rydberg static int bcm5974_probe(struct usb_interface *iface, 817f89bd95cSHenrik Rydberg const struct usb_device_id *id) 818f89bd95cSHenrik Rydberg { 819f89bd95cSHenrik Rydberg struct usb_device *udev = interface_to_usbdev(iface); 820f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg; 821f89bd95cSHenrik Rydberg struct bcm5974 *dev; 822f89bd95cSHenrik Rydberg struct input_dev *input_dev; 823f89bd95cSHenrik Rydberg int error = -ENOMEM; 824f89bd95cSHenrik Rydberg 825f89bd95cSHenrik Rydberg /* find the product index */ 826f89bd95cSHenrik Rydberg cfg = bcm5974_get_config(udev); 827f89bd95cSHenrik Rydberg 828f89bd95cSHenrik Rydberg /* allocate memory for our device state and initialize it */ 829f89bd95cSHenrik Rydberg dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL); 830f89bd95cSHenrik Rydberg input_dev = input_allocate_device(); 831f89bd95cSHenrik Rydberg if (!dev || !input_dev) { 832f89bd95cSHenrik Rydberg err("bcm5974: out of memory"); 833f89bd95cSHenrik Rydberg goto err_free_devs; 834f89bd95cSHenrik Rydberg } 835f89bd95cSHenrik Rydberg 836f89bd95cSHenrik Rydberg dev->udev = udev; 83788da765fSDmitry Torokhov dev->intf = iface; 838f89bd95cSHenrik Rydberg dev->input = input_dev; 839f89bd95cSHenrik Rydberg dev->cfg = *cfg; 840f89bd95cSHenrik Rydberg mutex_init(&dev->pm_mutex); 841f89bd95cSHenrik Rydberg 842f89bd95cSHenrik Rydberg /* setup urbs */ 843f89bd95cSHenrik Rydberg dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL); 844f89bd95cSHenrik Rydberg if (!dev->bt_urb) 845f89bd95cSHenrik Rydberg goto err_free_devs; 846f89bd95cSHenrik Rydberg 847f89bd95cSHenrik Rydberg dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL); 848f89bd95cSHenrik Rydberg if (!dev->tp_urb) 849f89bd95cSHenrik Rydberg goto err_free_bt_urb; 850f89bd95cSHenrik Rydberg 851997ea58eSDaniel Mack dev->bt_data = usb_alloc_coherent(dev->udev, 852f89bd95cSHenrik Rydberg dev->cfg.bt_datalen, GFP_KERNEL, 853f89bd95cSHenrik Rydberg &dev->bt_urb->transfer_dma); 854f89bd95cSHenrik Rydberg if (!dev->bt_data) 855f89bd95cSHenrik Rydberg goto err_free_urb; 856f89bd95cSHenrik Rydberg 857997ea58eSDaniel Mack dev->tp_data = usb_alloc_coherent(dev->udev, 858f89bd95cSHenrik Rydberg dev->cfg.tp_datalen, GFP_KERNEL, 859f89bd95cSHenrik Rydberg &dev->tp_urb->transfer_dma); 860f89bd95cSHenrik Rydberg if (!dev->tp_data) 861f89bd95cSHenrik Rydberg goto err_free_bt_buffer; 862f89bd95cSHenrik Rydberg 863f89bd95cSHenrik Rydberg usb_fill_int_urb(dev->bt_urb, udev, 864f89bd95cSHenrik Rydberg usb_rcvintpipe(udev, cfg->bt_ep), 865f89bd95cSHenrik Rydberg dev->bt_data, dev->cfg.bt_datalen, 866f89bd95cSHenrik Rydberg bcm5974_irq_button, dev, 1); 867f89bd95cSHenrik Rydberg 868f89bd95cSHenrik Rydberg usb_fill_int_urb(dev->tp_urb, udev, 869f89bd95cSHenrik Rydberg usb_rcvintpipe(udev, cfg->tp_ep), 870f89bd95cSHenrik Rydberg dev->tp_data, dev->cfg.tp_datalen, 871f89bd95cSHenrik Rydberg bcm5974_irq_trackpad, dev, 1); 872f89bd95cSHenrik Rydberg 873f89bd95cSHenrik Rydberg /* create bcm5974 device */ 874f89bd95cSHenrik Rydberg usb_make_path(udev, dev->phys, sizeof(dev->phys)); 875f89bd95cSHenrik Rydberg strlcat(dev->phys, "/input0", sizeof(dev->phys)); 876f89bd95cSHenrik Rydberg 877f89bd95cSHenrik Rydberg input_dev->name = "bcm5974"; 878f89bd95cSHenrik Rydberg input_dev->phys = dev->phys; 879f89bd95cSHenrik Rydberg usb_to_input_id(dev->udev, &input_dev->id); 880158e9287SHenrik Rydberg /* report driver capabilities via the version field */ 881158e9287SHenrik Rydberg input_dev->id.version = cfg->caps; 882f89bd95cSHenrik Rydberg input_dev->dev.parent = &iface->dev; 883f89bd95cSHenrik Rydberg 884f89bd95cSHenrik Rydberg input_set_drvdata(input_dev, dev); 885f89bd95cSHenrik Rydberg 886f89bd95cSHenrik Rydberg input_dev->open = bcm5974_open; 887f89bd95cSHenrik Rydberg input_dev->close = bcm5974_close; 888f89bd95cSHenrik Rydberg 889f89bd95cSHenrik Rydberg setup_events_to_report(input_dev, cfg); 890f89bd95cSHenrik Rydberg 891f89bd95cSHenrik Rydberg error = input_register_device(dev->input); 892f89bd95cSHenrik Rydberg if (error) 893f89bd95cSHenrik Rydberg goto err_free_buffer; 894f89bd95cSHenrik Rydberg 895f89bd95cSHenrik Rydberg /* save our data pointer in this interface device */ 896f89bd95cSHenrik Rydberg usb_set_intfdata(iface, dev); 897f89bd95cSHenrik Rydberg 898f89bd95cSHenrik Rydberg return 0; 899f89bd95cSHenrik Rydberg 900f89bd95cSHenrik Rydberg err_free_buffer: 901997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.tp_datalen, 902f89bd95cSHenrik Rydberg dev->tp_data, dev->tp_urb->transfer_dma); 903f89bd95cSHenrik Rydberg err_free_bt_buffer: 904997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.bt_datalen, 905f89bd95cSHenrik Rydberg dev->bt_data, dev->bt_urb->transfer_dma); 906f89bd95cSHenrik Rydberg err_free_urb: 907f89bd95cSHenrik Rydberg usb_free_urb(dev->tp_urb); 908f89bd95cSHenrik Rydberg err_free_bt_urb: 909f89bd95cSHenrik Rydberg usb_free_urb(dev->bt_urb); 910f89bd95cSHenrik Rydberg err_free_devs: 911f89bd95cSHenrik Rydberg usb_set_intfdata(iface, NULL); 912f89bd95cSHenrik Rydberg input_free_device(input_dev); 913f89bd95cSHenrik Rydberg kfree(dev); 914f89bd95cSHenrik Rydberg return error; 915f89bd95cSHenrik Rydberg } 916f89bd95cSHenrik Rydberg 917f89bd95cSHenrik Rydberg static void bcm5974_disconnect(struct usb_interface *iface) 918f89bd95cSHenrik Rydberg { 919f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 920f89bd95cSHenrik Rydberg 921f89bd95cSHenrik Rydberg usb_set_intfdata(iface, NULL); 922f89bd95cSHenrik Rydberg 923f89bd95cSHenrik Rydberg input_unregister_device(dev->input); 924997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.tp_datalen, 925f89bd95cSHenrik Rydberg dev->tp_data, dev->tp_urb->transfer_dma); 926997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.bt_datalen, 927f89bd95cSHenrik Rydberg dev->bt_data, dev->bt_urb->transfer_dma); 928f89bd95cSHenrik Rydberg usb_free_urb(dev->tp_urb); 929f89bd95cSHenrik Rydberg usb_free_urb(dev->bt_urb); 930f89bd95cSHenrik Rydberg kfree(dev); 931f89bd95cSHenrik Rydberg } 932f89bd95cSHenrik Rydberg 933f89bd95cSHenrik Rydberg static struct usb_driver bcm5974_driver = { 934f89bd95cSHenrik Rydberg .name = "bcm5974", 935f89bd95cSHenrik Rydberg .probe = bcm5974_probe, 936f89bd95cSHenrik Rydberg .disconnect = bcm5974_disconnect, 937f89bd95cSHenrik Rydberg .suspend = bcm5974_suspend, 938f89bd95cSHenrik Rydberg .resume = bcm5974_resume, 939f89bd95cSHenrik Rydberg .id_table = bcm5974_table, 94088da765fSDmitry Torokhov .supports_autosuspend = 1, 941f89bd95cSHenrik Rydberg }; 942f89bd95cSHenrik Rydberg 943*08642e7cSGreg Kroah-Hartman module_usb_driver(bcm5974_driver); 944